Jeep Cherokee Trailer Hitch and Accessories. 7-Way Round to 4-Way Flat Converter. $20.00. Mopar Trailer Tow Wire Harness Kit with 4-Way Flat Trailer Connector. $81.65. Jeep or any other companies whose products or part numbers are shown here as a reference. These terms are used for descriptive purposes only.. Dec 27, 2016 · This video will talk through the steps on how to flat tow a Jeep Wrangler JK behind a motorhome. https://weretherussos.com/how-to-flat Items We Use to Flat Tow the. If you have a trailer hitch on your JL Wrangler and are looking to tow and have the option to add trailer brakes, today we're going to be installing this Mopar seven way trailer wiring harness, fitting your brand new 2018 JL Wrangler..